Roadside post base



FIG. 1 is a perspective view of the roadside post base of this invention;

FIG. 2 is a front view of the roadside post base shown in FIG. 1;

FIG. 3 is a side view of the roadside post base shown in FIG. 1;

FIG. 4 is a top view of the roadside post base shown in FIG. 1; and,

FIG. 5 is a back view of the roadside post base shown in FIG. 1. 

What is claimed the ornamental design for a roadside post base, as shown and described. 